By what age should the nurse expect an infant to be able to pull to a standing position?

Correct Answer: C

Rationale: Most infants can pull themselves to a standing position at age 9 months. Infants who are not able to pull themselves to standing by age 11 to 12 months should be further evaluated for developmental dysplasia of the hip.

Correct Answer: D

Rationale: Choanal atresia is a congenital nasal obstruction that causes cyanosis that worsens with feeding and improves with crying, since crying opens the mouth for breathing. Bilateral atresia requires urgent intervention.

Correct Answer: B

Rationale: Anaphylactic shock results in decreased systemic vascular resistance due to histamine release causing vasodilation and capillary leakage.

Correct Answer: D

Rationale: Prior to discharge from the hospital, it is important that a new mother makes an appointment for home care or a primary care practitioner office visit within the next 2 or 3 days for the newborn. This ensures that the newborn will receive necessary follow-up care, monitoring, and evaluation after leaving the hospital. It is crucial for the newborn's health and well-being to have timely postnatal check-ups to address any concerns or issues that may arise in the early days after birth. This follow-up care also allows healthcare providers to assess the newborn's growth, feeding, and overall health progression.

Correct Answer: B

Rationale: For effective defibrillation, the paddles should be placed at the apex and right infraclavicular area, ensuring optimal current flow through the heart to terminate life-threatening arrhythmias.